<!---======================= begin_copyright_notice ============================

Copyright (C) 2020-2022 Intel Corporation

SPDX-License-Identifier: MIT

============================= end_copyright_notice ==========================-->

## Opcode

  MOVS = 0x2d

## Format

| | | | |
| --- | --- | --- | --- |
| 0x2d(MOVS) | Exec_size | Dst | Src0 |


## Semantics


```

                    for (i = 0; i < exec_size; ++i) {
                      if (ChEn[i]) {
                        dst[i] = src0[i];
                      }
                    }
```

## Description





```
    Move a state variable from <src0> to <dst>
```


- **Exec_size(ub):** Execution size

  - Bit[2..0]: size of the region for source and destination operands

    - 0b000:  1 element (scalar)
    - 0b001:  2 elements
    - 0b010:  4 elements
    - 0b011:  8 elements
    - 0b100:  16 elements
    - 0b101:  32 elements
  - Bit[7..4]: execution mask (explicit control over the enabled channels)

    - 0b0000:  M1
    - 0b0001:  M2
    - 0b0010:  M3
    - 0b0011:  M4
    - 0b0100:  M5
    - 0b0101:  M6
    - 0b0110:  M7
    - 0b0111:  M8
    - 0b1000:  M1_NM
    - 0b1001:  M2_NM
    - 0b1010:  M3_NM
    - 0b1011:  M4_NM
    - 0b1100:  M5_NM
    - 0b1101:  M6_NM
    - 0b1110:  M7_NM
    - 0b1111:  M8_NM

- **Dst(vec_operand):** The destination operand. Operand class: state,general


- **Src0(vec_operand):** The first source operand. Operand class: general,indirect,immediate


#### Properties




## Text
```
MOVS (<exec_size>) <dst> <src0>
```

## Notes





```
    - **Supported Type:** UD (for general and immediate operand).
        - If Dst and Src0 are both state operands, they must be variables of the same storage class.
        - If Dst is a general operand, Src0 must be a state operand; the index value representing the state variable will be copied to the Dst.
        - If Src0 is a general, indirect, or an immediate operand, Dst must be a state operand; the value in Src0 will be interpreted as the index value for the state variable in Dst.
        - In each of the above scenario, <exec_size> number of contiguous elements will be copied from Src0 to Dst starting from their respective starting offsets.
        - Neither saturation nor predication is supported for this instruction.
```

